.

Then, what does the blue light do for teeth whitening?

Bleaching gel containing hydrogen peroxide is applied to your teeth. The activation lamp emits blue light that triggers the gel; the lamp doesn't emit heat, meaning you won't be made uncomfortable by a hot light from the procedure. The tooth whitening gel enters your enamel and lifts the stains.

Additionally, is UV Whitening bad for your teeth? UV light-enhanced tooth bleaching is not only a con, but is dangerous to your eyes and skin, according to new research. The light treatment gives absolutely no benefit over bleaching without UV, and damages skin and eyes up to four times as much as sunbathing.

Also know, why does UV light whiten teeth?

The same ultraviolet light that causes sunburn and skin cancer can damage your gums, lips and eyes during a light-assisted teeth bleaching, a new study finds. The light is thought to act as a catalyst, quickening the breakdown of the peroxide to create free radicals and accelerating the whitening process.

Do teeth whitening lights really work?

According to a study published in the Open Dentistry Journal, LED whitening can be effective in helping speed up the whitening process. When combined with carbamide peroxide-based whitening agents, LED light has been shown to be a powerful catalyst for speeding up teeth whitening.